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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel flute timing?
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<blockquote data-quote="Hired Gun" data-source="post: 942659" data-attributes="member: 1290"><p>I can measure over 6" up into the bore and do it in tenths. When you measure in tenths any amount of curve looks like a lot considering I hate to see the indicator moving at all. So measuring in tenths it depends on the barrel but most every barrel has quite of bit of curve in 2". I have never seen one perfectly straight. To do the Chey Tac based rounds we have to be able to single point close to 2.5". Cutting to the base of the shoulder to .010" under gets the pilot into the bore long before the body gets much cut. The bushing is close to 1.5" beyond the shoulder on a 338 LM.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 942659, member: 1290"] I can measure over 6" up into the bore and do it in tenths. When you measure in tenths any amount of curve looks like a lot considering I hate to see the indicator moving at all. So measuring in tenths it depends on the barrel but most every barrel has quite of bit of curve in 2". I have never seen one perfectly straight. To do the Chey Tac based rounds we have to be able to single point close to 2.5". Cutting to the base of the shoulder to .010" under gets the pilot into the bore long before the body gets much cut. The bushing is close to 1.5" beyond the shoulder on a 338 LM. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Barrel flute timing?
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